Minelab F3 Service Manual download pdf (Page 15)

F3 Field Service Manual

Page 15

Figure 11: Removal of Wiring Loom from Electronics Pack

NOTE

Extreme care must be taken when removing the wiring loom plug from the electronics pack.

DO NOT use excessive force as this may cause damage to the connector on the printed

circuit board.

● Undo and remove the upper two screws (Part 7) securing the electronics pack to the

upper shaft.

● Slide the electronics pack back along the upper shaft (avoid snagging the wiring

loom) approximately 10cms (4ins) exposing the coil plug (Part 5).

● Using the retainer plug (Part 4), if fitted, gently unscrew the coil plug (Part 5).

NOTE

If fitted, the retainer plug will stop the coil cable from being retracted down the shafts once

the coil plug is unscrewed from the electronics pack. If a retainer plug is not fitted connect

the coil cable pull through from the F3 Tool Kit to secure the coil cable. Alternatively, the

cable can be secured by tying the plug to a length of string.

● Remove the electronics pack from the upper shaft.

b. To fit an electronics pack:

● Slide the electronics pack on to the upper shaft until the coil socket is within 10cm

(4ins) of the end of the upper shaft.

● Apply a small amount of silicon sealant to the coil socket thread.

● If necessary, remove coil pull through from the coil plug ensuring that the coil cable

does not untwist.

● Reconnect the coil plug (Part 5) to the electronics pack using the coil plug retainer

(Part 4) or fingers. DO NOT OVERTIGHTEN.

● Remove excess sealant.

● Slide the electronics pack all the way along the upper shaft, ensuring the wiring loom

cable lays in the cut out at the top of the electronics pack rear cover.

● Refit the two screws (Part 7) securing the electronics pack to the upper shaft.

● Check the condition of the O-ring (Part 8) and apply a small amount of silicone

grease as required.

● Ensure the O-ring (Part 8) is positioned correctly in the groove under the bulkhead

cover in the electronics pack rear panel.

● Ensure that the keyway on the wiring loom plug (Figure 12) is towards the bottom of

the electronics pack then plug the main wiring loom into the socket on the printed

circuit board inside the electronics pack.

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Minelab F3 Service Manual Page 15